Machine for folding and setting up cartons.



No. 633,953. Patehted Sept. 26, was.

w. H. DOBLE & w. s. SCALES.

MACHINEFUR FOLDING AND SETTING UP GABTONS.

Application fled my 31, 1898) (No Nodal.)-

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No. 633,953. Patented Sept. 26, I899.

W. H. DOBLE 8L W. S. SCALES. MACHINE FOR FOLDING AND SETTING UP GARTONS.

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I N0. 633,953. I Patented Sept. 26, I899.

W. H. DOBLE 8. W. S. SCALES. 1 MACHINE EBB FOLDING All] SETTSNG UP.CARTONS.

(Applicstion filed Kay 31, 1898.) (In Ilodel.) 7 Sheets-Sheet 3.

No. 633,953. Patented Sept. 26, I899.

W. H. DDBLE &. W. S. SCALES. cum: FOB FOLDING AND SETTING UP CARTONS.

(Application filed May 81, 1898.] (No Nodal.) 7 Sheets-Sheet 5.

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"0.633353. Patented Sapt. 26, I899.

w. H. DOBLE & w. s. scALEs.

MACHINE F08 FOLDING AND SETTING UP BABTUNS.

(Application Med Ma 31,1898. (No Model.) Islands-Sheet 6.

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- UNITED STATES PATENT Grantee.

WILLIAM nDonLE, or QUINCY, ANDJWIVL'LIAM s. SCALES, or nvnnnrr, IMASSACHUSETTS. i

MACHINE FOR FOLDINGAND. SETTING u CARTONS.

SPECIFICATION forming part of Letters P E.pplication filed May 31, 1893.

['0 (LZZ whom it may concern: Be it known that we, WILLIAM H. DOBLE,residing at Quincy, in the county of Norfolk, and WILLIAM S. SCALES,residing at Everett, in the countyof Middlesex, State of :Massachnsetts,citizens of the United States, have invented certain new and usefulImprovements in Machines for Folding or Setting Up Cartons and the Like,of which the following, taken in connection with the accompanyingdrawings, is a specification.

,Our' invention relates to a machine for folding or setting up cartonsand other receptacles of a kindred nature. For convenience and economyof packing and transporting the cartons they usually comei'rom theinanufac turer in a knockdown forum-that is, the

l machine for that purpose.

flaps which form the top and bottom of the cartonare left unfolded andthe body of the carton is knocked down flat. ,In this knockdown form oneside flap and one end flap lie end to 'end, and the other end and sideflaps also lie end to end underneath the first pair, but in reverseorder. Before the cartons can be used they have to be squared out andthe flaps whichg form the bottom of the carton folded.

. Theobject of our invention is to produce a We have especially intendedthe machine for. use in combination with a package-filling or a weighingand package-filling machine, so that it will automatically fold anddeliver to the package-filling machine the cartons, paper bags, orotherreceptacles as fast as they are needed although the machine embodyingour invention may be used independently of the package-filling machine.i

We will now proceed to fully describe our invention, the particularfeatures of which will be pointed out in the claims at the end of thespecification;

In the drawings,Figure 1 is a side elevation of'a machineembodying ourinvent-ion. Fig.

2 is an end elevation looking'from the left of Fig. 1. Fig. 3 is a plan.Fig. sis a detail view showing the dog pivotedto the cartonlifter, whichaids in spreading open thecarton.

a detailof the sliding carton-carrier. Fig.

' 7 is a' section on line 7 7 of Fig. 3, showing Fig. 5 Ba top view of.Fig. 4. Fig. 6 is.

atent No. 633,953, dated September 26, 1899;

fierial 170.682.12 1. Cdo model.)

the clutch for starting and stopping the machine. Fig. '8 is an enlargeddetail showing the fingers for folding the third flap on the bottom ofthe carton.' Fig. 9 isan enlarged view of the upper part of Fig. landshowing some portions which were broken away in Fig. 1. Fig. 10 is anenlarged sectional View showing the pneumatic lifting-arm applied to acarton ready to lift it andalso showing the lower suction-arm which actson the lower panel of the carton. Fig. ll is an enlarged lifting-armpartly elevated with thecarton held thereby and two of the bottom flapsfolded, as shown in Fig. 19. Fig. 12 is a section on line 12 12 of Fig.11. Fig. 13 isa view ofthe hopper broken away to'show the blanks and theslide drawn back read y to push forward a carton-blank to thepasting-rolls. Fig. 14 shows the carton pushed forward ready for thepasting-rolls to advance. Fig-15 isa View guides59. Fig. 19 shows theform of the car.- ton when in the position shown in Fig. 11 with two ofthe end flaps folded. Fig. 20 shows the carton after it. has beenturned. to an upright position and the thirdiflap has been folded byfingers 39. Fig. 21 shows the carton after it'has been turned at rightanaround and the fourth end flap has been folded ted lines showing whatwas the unfolded end carton has been turned. part way around.

, The unfolded or knocked down cartons are stacked in a hopper 1 and aredrawn'out at the bottom one at a time. The hopper sho'uldbe of a size tofit the cartons, or it should have adjustable walls, so that thecarviewof the guides 59 and, of thepneumatic from the left of Fig. 14, takenafter thepasting-rolls have advanced and are in contact from the dog 57after entering between the gles to'Fig. 20,'when the standard is turnedafter engagement with the incline 52-, the dot-' flap of Fig. 20 andshowing thereby that the tons will be kept with even edges. The hopperis secured to bracket 5 by bolts 6. A sliding carriage 10 has flanges11, which fit in the grooved ways 8 in the side guides 7. The guides 7are supported on the frame 9. On the top of the carriage is a plate 2,which supports the stack of cartons when the carriage is in its forwardposition, as shown in Figs. 1 and 9. The plate 2 has aforwardlyextending portion 4:, which is thinner than the rear portion,so that the offset or shoulder 3 is formed. When the carriage lOmoves toits reartnost position, the plate 2 will slide back until the portion atcomes under the eartons, which will settle down when the shoulder 3 isat the rear. When the carriage moves forward, the shoulder 3 will engagethe lowermost carton, so that it will be carried forward on theprojecting portion 4. Link 12 is pivoted at one end to the carriage 10,and at its other end it is pivoted to the upper end of bent cam-lever13, having on its lower end pin 14, which engages with groove 15 in theAs the cartons are usuallyconstructed they are rectangularincross-section when folded* that is, when set upand they have both at thetop and the bottom four flaps to close the ends. One pair of theoppositely-folding end flaps are usually folded first, then one flap ofthe other pair, and then the fourth flap. In order to keep the flaps inplace to tightly close the bottom, they should be pasted before folding.It is unnecessary, however, to paste the fourth or outside flap. We havecontrived pasting mechanism for pasting the flaps as soon as the cartonis moved forward by the carrier, the cam-groove 15 of cam 16 being ofsuch form thatthe carriage 1O slides forward at first only a part of itsforward movement. Then the carriage remains stationary long enough forthe pasting operation and then moves forward again to bring the cartoninto position for the folding mechanism. The pasting mechanism is asfollows: A feed paste-roll 66 turns in a paste-box 67 and is driven bypulley U8. The two pastingrolls 69, which paste the flaps, are kept inContact with feed-roll 66 by the action of spring 173 on lever 73 (seeFigs. 1 and 2) and are kept in contact with each other by springs 70,the shafts 71 of the pasting-rolls being journaled in yielding supports72. (See Figs. 2, 13, let, and 15.) The said yielding supports 72 aresupported on the bellcrank lever 73, which is pivoted at 74, the lowerend being in position to be engaged by cam 75 on cam-disk 16. On thecompletion of the first forward movement of the carriage 10 one of thecams 75 acts on the lever 73 to push forward the pasting-rolls 60, whichengage between them th: carton and the projecting portion at of theslide-plate on which the carton is supported. The axles of thepasting-rolls yield sufficiently to include the carton 56 and plate 1between the said rolls, but the springs keep the rollsin contact withthe carton and plate. The forward movement of the pasting-rolls issufficient for them to travel over the flaps of the carton, and thenthey retreat. As the carton lies on the plate one of the side flaps andone of the end flaps are exposed to the action of the upper pastingroll.The plate at has an open space at 140, (see Fig.6,) so that that one ofthe under flaps which lies over said opening will be exposed to theaction of the lower pasting-roll, the other under flap being protectedfrom the pasting-roll by the plate 4. After the pasting-rolls havewithdrawn the carriage 10 completes its forward movement and brings thecarton under the end of the lifting-lever, as shown in Figs. 1 and 2.The second cam projection 75 on disk 16 now causes the pasting-rolls tomove forward again to paste the flaps which form the top end of thecarton, so that they may be closed in when the package is filled. Thelifting-lever has two arms 18 19 and is pivoted on the hollow shaft 20.

Said shaft 20 has its bearings in the sides of the swiveling frame 41,the side being broken away to more clearly show the lever. The arm 18has a hollow passage-way 21 through it leading into the hollow shaft 20.The end of arm 18 terminates in a cup-shaped portion 22, having anelasticedge formed of rubber or other elastic material. A vacuumchamber25 is connected with the end of said hollow shaft by an air-tube 124 andflexible connection 24. The tube 2% should be flexible and also havesome slack to allow for the lateral swing of the arm wit-h its standard,as will be hereinafter described. The tubes are shown broken away. Athree-way valve 125 controls the passage from the tube 124E to flexibletube 24. A flexible tube 126 leads also from said tube 124 toslide-plate at, with which it is connected, the said plate having anopening 141 to said tube. (See Fig. 6.) A three-way valve 127 controlsthe passage.

A rod 128, connected with arm 132 of valve 125, and a rod 129, connectedwith arm 133 of valve 127, are both engaged by the arm 18 of thelifting-lever when in its downward position to open the said valves 125and 127 and make open communication from the vacuumchamber to the hollowarm 18 and from the vacuum-chamber to the flexible tube 126. By openingthe valve 125 when the cup 22 rests on one of the cartons the suctionwill cause the carton to adhere to the cup and be lifted with it whenthe arm 18 rises. By opening the valve 127to the vacuum-chamber when thecarton is on the plate 4 the suction will draw on the lower side of thecarton. When the arm 18 rises from engagement with rod 129, thecontraction of spring 130 will turn the valve 127, closing the passageto the vacuum-chamber and cutting off the suction on the lower panel ofthe carton. Before the valve 127 closes to cut off the suction, however,during the first part of the uptoo ' as soon as thecarton is partiallyopened, and

the carton will then be lifted.

' Fixed to the hollow shaft 20,, on which the arm 18 is pivoted, is asegment-gear 26, which meshes with rack 27. Said rack is reciprocatedvertically in grooved ways in frame 4:1

by a lifting-rod 28 and causes the lifting-lever 18 10 to turn on itshorizontal axis. Said rack is pivoted on the rod 28, so that the rackcan rotate a quarter-turn. The rod28 passes down through hollow pivot42, on which'frame 4.1 is pivoted, as will be described hereinafter, andthrough a guide 29 and has a pin 30 at its lower end which engages withcamslot 31 in cam 32 on shaft 33. The arm 19 is bifurcated at its end toform bearings 35 for the fingers 31. These fingers 3 haverearwardly-projecring branches 36, connected by a tension-spring 37,which'tends to keep-the fingers 34 spread open. (See Figs. 8 and 12.)The office of the fingers is to engage with the two flaps of the cartonwhich are to be first folded and turn them under to form part of thebottom. These we will term the end flaps, as the narrow flaps are theones which are usually turned in first when the end of the carton isoblong in shape. As the liftinglever 18 19 turns upon its pivot thefingers 34: rise between cam-guides 38, which engage the fingers. Theinside walls of these cams approach each other upwardly. On the sides ofthe fingers 34 are antifriction-rollers 139, which are pivoted on axesradial to the axis of arm 18. These. antifriction-rollers ride upon thesides of said arms 38 when the arm 18 rises and the fingers 34 arecaused to .ap--

proach each other. Before the lifting-lever 18 19 begins to risethefingers 34 are lower than the carton which lies on the plate 4.During the first part of the upward movement of the lever l8 19, whilethe opening up of the carton is taking place, the fingers 34 will rise,so that when the whole carton begins to be lifted the fingers will thenbe in engagement with the two end flaps. As the liftinglever continuesto rise and the fingers 3i approach each other by the pressure of thecams 38 the fingers will push inwardly the end flaps of the carton. Ifthe machine is intended to fold square cartons in which the flaps areall the same size and overlap each other when folded, it is necessary todevise means by which one of the end flaps will be folded in advance ofthe other, because the two will interfere if it is attempted to foldthem simultaneously. This can be accomplished by variation in the formof the cam-guides 38; In order not to tear the cartons, it is preferableto have the fingers 34: bent, so that the bent portions 134: will engagewith the flaps.

' There is usually a certain amount of spring pivot.

in the carbon along the folding-lines, owing to the elastic nature ofthe cardboard of which the carton is composed, and this elasticity tendsto cause the carton to spring back out ticularly shown in Figs. 4: and5, in which the carton 56 is represented as clinging to the cup 22 onthe end of arm 18 before the arm begins to rise, the carrier-plate 4notfbeing shown. A dog 57 is pivoted on an arbor 60, jourualed in cars61, projecting from cup 22. When the arm 18 rises, the dog 57 willengage with the boss 58, projecting from one of the carton-guides 59,and be turned down on its The toe 62 of the dog will engage with theedge of the carton at the outer foldinglineand aid the suction devicesalreadydescribed to square out the carton. After the lower suctionactionis out off the toe 62 will continue turning until it swings around intothe position shown in dotted lines in Fig. 4, the carton being shown indotted lines turned back past the right angle, giving the carton theshape shown in Fig. 17. This will break the spring somewhat, so thatwhen the carton is again brought back to the square form, as in Fig. 18,it will retain its shape. After the arm 18 has risen far enough for thedog 57 to clear the projection 58 the holder 22, with carform andpermitting the fingers 34 to fold the end flaps, as previouslydescribed. (See espeoially Figs. 2, 9, 11, and 12.) The carton will nowbe in the form shown in Fig. 19, two

flaps remaining unfolded. On the down movement of the arm 18 after thecarton has been folded and delivered the point 65 onthe dog 57 willstrike the projection 58 and turn the dog back on its pivot to itsnormal position. The pin 63, which projects from the dog, will strikeagainst stop 64 to preventthe dog from being thrown back too far.

Rising from the swivel-frame il are two standards 40, to the upper endsof which are hinged the fingers 39. Springs 55 normally hold the hingedfingers 39 in the position shown in Figs. 1 and 2, projecting towardeach other into the path ofthe projecting side flaps of the carton. Whenthe arm 18 reaches nearly an upright position, the upper one of theseprojecting side flaps (the one which has been pasted) is brought intoengagement with saidfingers 39, both fingers 39 engaging the same flapnear opposite ends thereof. The

continued upward movement of the arm 18 will cause the said flap to befolded inward. The position when partially folded is shown in dottedlines in Fig. 1. When the arm 18 has rocked far enough up for the saidside ilapto be folded in at an angle of about fortyiive degrees, thefingers 34: will have passed up through the contracted passage betweenthe cam-guides 38 into a wider way, which allows the said fingers to bespread apart by the tension of spring 37 and to be withdrawn from theend flaps out of the way of the side flap, so that the side flap can befolded square onto the two end flaps which have been already folded. Thecarton is nowin the form shown in Fig. 20. The fourth flap yet remainsunfolded. The swiveling frame 11 has a pivot 42, on which it turns inbearing 43. Pivot 42 is hollow, softha t the rod 28 may pass through it.On the bottom of the swiveling frame 41 is secured a horizontalsegment-gear44, which meshes with rack-bar 45, which slides in ways inthe stationary frame. Connected with'the rack-bar 45 is a connecting-rod16, which is also connected with bentlever 4L7, pivoted at 147, saidlever47 having at the end of its short lower arm a pin 18, which engageswith cam-slot 49 in cam 50. Said cam 50 is mounted on shaft 17, beingthe same shaft on which cam 16 is mounted. When'the cam 50 revolves, therack 45 is reciprocated in its horizontal ways far enough to give aquarter-turn to segm ent-gear eat-and swiveling frame 41, thus alsoturning the arm 18 and standards 40, which are carried on said frame.This turn will swing the arm 18 around to bring the carton over thetable 51. "/Vhen the device is used with a weighing and package'fillingmachine such aswe have already referred to, this table 51 willpreferably be fixed to or form a part of the weighing-machine. WVhen thearm 18 swings over, as just above described, the fourth flap of thecarton strikes the inclined surface 52, which projects from the end ofthe table, and the said flap is folded under to complete the bottom endof the carton. The carton will now be in the form shown in Fig. 21, thedotted lines indicating the position of the fourth flap before it wasfolded after the carton was given the quarter-turn from the position inFig. 20. By the same swinging movement of arm 18 the hinged fingers 39will strike the projections 53 on the under side of table 51. Thisprojection is so adjusted as to cause the fingers 39 to tip over ontheir hinges 54L sufficiently to clear the under side oftable 51 and notto interfere with the folding of the last flap when the quarter-turn ofthe swiveling frame occurs. This movement of the fingers 39 away fromthe carton is made to occur when the fourth flap has been folded to anangle of about thirty to fortyfive degrees. Extending up from thehorizontal sliding rack 45 is a projection 145, and when'the rack movesto the right, as viewed from Fig. 1, to give the quarter-turn to theswiveling frame already described this projection will engage with thedownwardly-extending arm 131 of the three-way valve 125 and turn thevalve, so as to close the passage between the arm 18 and thevacuum-chamber and open the passage-way in the arm 18 to the outer air,so that the suction on the carton will be released. This will occur atthe end of the forward movement of the rack and after the swivelingframe has completed its quarter-turn, when the carton is suspended bythe arm 18 over the table 51, so that the carton will be deposited onthe table with the four flaps which form the bottom completely folded.

As the flaps have a certain amount of spring in them which the paste isnot sufficiently strong to resist before it dries, it is desirable tohave some means to hold down the carton on its bottom to prevent theflaps from unfolding. A projection 151 from the weighing-machine extendsover the table 51, on which the carton is deposited, at a sufficientheight above it so that when the carton is deposited on the table saidprojection 151 will prevent the carton from springing up. The continuedrotation of the cam 50 reverses the direction of movement of rack 45 androtates the swiveling frame a quarter-turn backward, the standards 40and the lever 18 19 being carried with it, and springs 55 restorefingers 39 to their normal position. The cam 16 then actuates thevertically-reeiprocating rack 27in a reverse direction to its formermovement and causes lever 18 19 to descend. In the meantime the carriage10 has been drawn back until the forward slide-plate 4 comes underneaththe pile of cartons in the hopper and the bottom carton settles downwith its rear end in front of the shoulder-3, which engages said cartonand pushes it forward when the carriage moves forward again.

Our carton-folding machine is specially intended to cooperatewithaweighing and package-filling machine and may be connected with theweighing and package-filling machine to work intermittently in unisontherewith, so that a carton will be folded and laid on the table for usein the weighing-machine as fast as the packages are filled. One methodof making such connection is illustrated in the drawings.

81 represents a package-moving finger projecting from anintermittently-rotating package-moving ring-such,for instance,as shownin Patent No. 556,258 to Doble and Watson, dated March 10, 1896, or inthe application of G. W. Watson, filed June 30, 1897, Serial No.642,928, in which the package-moving ring rotates through a certain areafter a full package has been removed from the scales and the packagemoving fingers push another empty carton onto the scales, and thenthering automatically stops until the package is filled. In the drawingsherewith the said ring is not shown. Pivoted on a support 82 is abell-crank lever 83, which lies in the path of the fingers 81, so thatwhen the intermittently-moving ring rotates the said bell-crank will beengaged by one of said fingers and tipped on its pivot. A connecting-rods4. is

633,953 Y V g pivoted at its upper end to said bellcrank and at itslower end is pivoted at 85 to the short arm of lever 86, which ispivoted at87 to a part of the stationary frame. The cup-shaped disk 88is loose on shaft 33 and is continuously 'through one cycle of itsoperation. The arbor 92 of the pawl 90 passes through the disk 89, andon its outer end is an arm 93, which engages with the lower end of leverS 6'once at each revolution of the disk 89. \Vhen the arm 93 and lever86 'do so engage, the pawl 90 isthrown out of engagement with the teethof disk 88, and the disk 89 and shaft 33 are brought to a,stop. Thisstop is timed to occur when the arm 18 has reached its uppermostposition, carrying one of the cartons,

which then has three flaps folded and is ready for the quarter-turn tofold the other flap, as already described. ing finger 81 again moves,tipping the bellcrank 83 and lifting the rod St, the rod 86 will bedisengaged from arm 93 and spring 94.- will throw pawl 90 back againinto engagement with one of the teeth 91 of the disk 88.

Gear-wheel 95, which is fast to shaft 33, gears with a similargear-wheel 96, as shown in Fig. 3, on shaft 17 and gives motion to saidshaft 17 and the cams 16 and 50.

In describing now the operation of the machine we will assume it to becombined with a weighing and package-filling machine of the characteralready referred to, and for convenience we will begin the descriptionat the point in the operation when the machine is in the position shownin Fig. 1, in which the lifting-arm 18 has just descended, thesuctioncup 22 resting on the carton which has been fed forward andpasted, and the valves 125 and 127 are both opened to the vacuum-chamberand closed to the outside air by the downward pressure of the arm 18 onrods 128 and 129 in the manner previously described. The package-movingfingers-of the weighing-machine are now supposed to be at rest, and aoarton is on the scales being filled, and the disk 89, which, as alreadystated, makes one rotation at each cycle of operation, is in the midstof a rotation. Cam 32 now draws down rod 28 and rack 27, which by engagement with segment-gear 26 turnsup lever 18 19 on its pivot. Thecarton clings to cup 22 on the end of arm 18 and is lifted, the suctionon the lower panel of the carton through flexible tube 126 retarding themovement of that portion of the carton until the valve 127 is turned bythe tension of spring 130-110 shutofi the suction. The carton will besquared out by the upward pulling of the lifting-arm 18and the suctionwhich has been pulling down on the lower panel and by the action Whenthe package-mow of the dog 57, and it will be preserved in its squaredform by the action of the side guides 59 after the suction on the lowerpanel is cut off. As the arln 18 rises the fingers 34: will fold in theend flaps, and then said fingers will withdraw when they have passed upthrough the contracted portion of the passage between the guidecams .38.will fold one of the side flaps during the latter portion of the upwardascent of the lifting-arm, the fingers 3i withdrawing from the end flapsin time to avoid interference with the folding of the side flap. At thispoint the clutch S8 89 will have rotated far enough to bring the arm 93,which is on the outer end or the arbor 92 of pawl 90, into engagementwith lever 86, disengaging the pawl from the teeth of disk 88, so thatthe disk 89 and shaft 33 are brought to a stop, and the arm 18 willstand stationary, holding the carton with three flaps folded until thetwo disks of the clutch are again in engagement. During this period ofrest the package-moving ring of the weighing-machine is at rest and acarton is on the scales being filled. As soon as the scale-beam tipsunder the weight of the package the package-moving ring begins to rotateto bring a fresh package to the scales. In so doing thepackage-movingfinger 81 engages bell-crank lever 83, thereby. lifting the rod 84anddisengaging it from arm 93, so that the disk 89 again rotateswithdisk 88 and the carton-folding mechanism is set in operation. The cam 50rotates and through its interme diate mechanism, already described,causes the swiveling frame 41 to make a quarterturn, by which the fourthflap is folded, valve 125 is turned to shut off the suction through arm18, and the carton is deposited on the table ready for use. Theswiveling frame then makes a quarter-turn in the reverse direction,carrying with it the lever 18 19. Then the said lever turns down on itspivot and brings the cup 22 down onto the new carton, which is now onthecarrier-plate 4: in position to receive it, the said plate having beenmoved back to receive said carton from the hopper, then forward to thepasting-rolls, and then forward again to its position to meet thelifting-arm 18 by means of the cam 16, while the arm 18 has been making'its several movements to fold the preceding carton. The valves 125 and127 are both turned by the downward movement of arm 18 to bring intoaction the suction on the upper panel of the carton through arm 18 andcup 22 and on the lower panel through flexible tube 126 and the openingin the plate 4. The carton is lifted and folded as before.

It is thus seen that when the folding-machine is eombined with aweighing and package-filling machine of the kind described as thepackages are filled. The newly-folded carton need not necessarily be thenext one to be filled, bntmay be deposited in a posi tion where it willin due course be carried to the proper place to be filled in regularorder. We do not intend to limit ourselves to the use of thefolding-machine in combination with the particular type ofweighing-machine above described, as it is obvious that theweighing-machine may be varied in construction, the main object beingthat it shall give intermittent motion to the carton-folding machine, sothat a carton shall be folded .for every carton filled. It is alsoobvious that the carton-folding machine may be used independently of aweighing machine. Other means than suction may be readily devised toenable the lifting-arm to hold the carton and be within the scope of ourinvention.

What we claim is I. In combination with a package-filling machine, amachine for setting up knockeddown packages and feeding them to the filling-machine, said setting-up machine having a hopper for theknocked-down packages, a suction-holder for holding the package whilebeing opened, a valve which controls the ac tion of the suction-holderon the package, means for transferring a package from the hopper andpresenting itto the suction-holder, valve-operating mechanism whichcauses the snction-holder to hold the package when presented to it,mechanism for opening the package, mechanism which transfers it to thepackage-filling machine, and mechanism which causes the suction-holderto release the package, substantially as described.

2. In a machine for setting up knockeddown packages, a hopper for theknockeddown packages, a carrier which withdraws the packages one by onefrom the hopper, a pivoted arm which seizes and lifts the packages fromthe carrier, mechanism which swings said arm through an arc in avertical plane and then turnsit on its pivot, mechanism which opens thepackage while being lifted, and mechanism which causes the said pivotedarm to deposit the opened package in an upright position, substantiallyas described.

3. In a machine for setting up cartons and closing the end, a hopper forthe knockeddown cartons, mechanism for taking a carton from the hopper,pasting mechanism which pastes the flaps, a pivoted arm which lifts thecarton, mechanism which squares open the carton, mechanism which foldsthree of the flaps, mechanism which then gives to the said lifting-arm apartial rotation and mechanism which folds the remaining flap,substantially as described.

4:. In a machine for setting up cartons, mechanism which feeds theunfolded cartons, pasting mechanism for pasting the flaps, an arm whichlifts the carton, guides which square the carton as it is lifted,fingers which fold two of the flaps, mechanism which then folds a thirdflap, mechanism which then gives the lifting-arm a partial rotation andmechanism which then folds the remaining flap, substantially asdescribed.

5. In a machine for setting up cartons, a pivoted lever having an armwhich takes the unfolded cartons one at a time, mechanism which movessaid lever on its pivot, guides which square the carton as it is lifted,fingers pivoted in another arm of said lever, guides which turn saidfingers inwardly as the arm rises, said lingers engaging with two of theflaps of the carton and folding them and mechanism which then folds theremaining flaps, substantially as described.

6. In a machine for folding or setting up cartons and the like, apivoted lever having a hollow suction-arm, a vacuum-chamber, a flexibletubular connection and a valve be tween said chamber and saidsuction-arm, mechanism for presenting an unfolded carton to thesuction-arm, valve-operating mechanism whereby the suction-arm takeshold of the carton, mechanism foroperating the said pivoted leverwhereby it lifts the carton, mechanism for folding the flaps of thecarton while held by said arm and mechanism for cutting off the suctionwhereby it releases the carton, and mechanism for retracting the saidlever, substantially as described.

7. In a weighing and package-filling machine, the combination ofmechanism which opens and sets up the empty packages, mechanism whichfills and weighs the opened packages, and intermediate mechanismintermittently actuated by the weighing and packagefilling mechanism ateach cycle of movement thereof to start the setting-up mechanism,substantially as described.

8. In combination with a weighing and package-filling machine having anintermittentlymoving member which has a period of movement each time apackage is filled, a package folding or setting-up machine havingstartand-stop mechanism, and intermediate mechanism which controls saidstart mechanism actuated by said intermittently-moving member of thepackage-filling machine whereby a package is folded for each cycle ofmovement of the intermittently-moving member, substantially asdescribed.

9. In a machine for folding or setting up cartons, a clutch whichconnects the driving mechanism with the folding or setting-upmechanism,a stop which disengages the clutch at the end of each cycle ofmovement and causes the folding or setting-up mechanism to becomeinactive, a trip device which releases said stop from engagement withthe clutch, and means for again engaging the clutch with the drivingmechanism and ren= dering the folding mechanism again active,substantially as described.

10. In a package folding and setting-up machine, a suction device whichacts on the under side of the unfolded package and a pivoted suction-armwhich acts on the upper side by said intermittently-moving member of theweighing-machine, whereby each time the scale-beam tips the folding-machine is set in operation, substantially as described.

12. In a machine for folding and setting up knocked-downcartons,mechanism which lifts the carton, mechanism which opens thecarton on its folding-lines toarectangnlar form, mechanism which thenengages with the package and continues the folding past the right angleand then Withdraws, allowing the carton freedom to resume itsrectangular form,

and guides which check its return movement past the rectangular,substantially as described.

13'. In a machine for setting up knockeddown packages, a movablesuction-arm which lifts the packages, a vacuum-chamber,a pneumaticconnection and three-way valve be-- tween said vacu urn-chamber andsuction-arm, means for turning said valve to open communication betweensaid vacuum-chamber and suction-arm and render the suction-arm operativeto hold the package, means for moving the saidarm wit h packageattached,guides which engage with and open the package as it rises,means for closing communication between the suction-arm and the vacunm-chamher and means for opening communication from the suction-arm tothe external air, substantial] y as described. 7

In testimony whereof we affix our signa: tures in presence oftwowitnesses.

WILLIAM H. DOBLE. WVILLIAM S. SCALES.

Witnesses:

QSCAR F. HILL, ROBERT WALLACE.

